摘要
为实现30kVA三相UPS并联运行,提出了一种基于TMS320F2812的并机控制方案。它采用了一种通过两级锁相实现相位同步的方法,通过计算无功功率差,实现对输出电压幅值的调节,从而实现并机系统中较高精度的同步和均流。试制了并机控制系统样机,实验结果验证了该方案的可行性。
In order to implement 30 kVA three-phase parallel UPS operating normally,a kind of project based on TMS320F2812 for controlling parallel UPS system is put forward.The project applies two-stage phase-locked method to realize synchronization in phase for output voltage.The amplitude of output voltage is adjusted by calculating reactive power difference. Consequently,synchronization and current-sharing for parallel UPS system are implemented more accurately.The sample of control circuit of parallel UPS has already been trial-manufactured, the experimental results demonstrate the project is feasible.
出处
《电力电子技术》
CSCD
北大核心
2008年第4期43-45,48,共4页
Power Electronics
关键词
不间断电源
锁相环控制
同步/均流
uninterrupted power supply
phase-locked loop control
sychronization / current sharing
